From TGB WMC WIKI
Configure Windows Media Center’s guide from your desktop
/Paste from developers website:
Guide Tool is a Windows Media Center guide management application.
Here are the features that Guide Tool provides:
Local and remote guide management Lineup customization backup and restore Channel name and number edition Restoration of previously edited channel names and numbers Modification of channels’ visibility Automated subscribing to guide services (manually, by number or by call-sign) Tuner merge (by channel number, by call-sign or by guide service) DVBLink sources synchronization Listing of tuners providing channel’s sources Generation of lean MXF file (mostly for debugging purpose) More fun stuff to do with your channels